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Check for __thread attribute, but do not use it since it slows down ECL a lot.

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This commit is contained in:
jjgarcia 2005-10-24 08:31:39 +00:00
parent dd83a988c8
commit 69bc814ab1
3 changed files with 70 additions and 3 deletions
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12
src/aclocal.m4 vendored
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@ -519,3 +519,15 @@ if test "$dynamic_ffi" = "yes" ; then
AC_DEFINE(ECL_DYNAMIC_FFI, 1, [we can build calls to foreign functions])
fi
])
dnl --------------------------------------------------------------
dnl Provides a test for the existance of the __thread declaration and
dnl defines WITH___THREAD if it is found
AC_DEFUN([ECL___THREAD],
[AC_CACHE_CHECK(for __thread local data, ac_cv_ecl___thread,
AC_TRY_COMPILE(,[static __thread void *data;],
ac_cv_ecl___thread=yes,
ac_cv_ecl___thread=no))
dnl We deactivate this test because it seems to slow down ECL A LOT!!!
ac_cv_ecl___thread=no
])

58
src/configure vendored
View file

@ -3605,6 +3605,61 @@ echo $ECHO_N "checking for software type... $ECHO_C" >&6
echo "$as_me:$LINENO: result: ${SOFTWARE_TYPE}" >&5
echo "${ECHO_T}${SOFTWARE_TYPE}" >&6
echo "$as_me:$LINENO: checking for __thread local data" >&5
echo $ECHO_N "checking for __thread local data... $ECHO_C" >&6
if test "${ac_cv_ecl___thread+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
static __thread void *data;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_ecl___thread=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_ecl___thread=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_ecl___thread" >&5
echo "${ECHO_T}$ac_cv_ecl___thread" >&6
ac_cv_ecl___thread=no
@ -3658,7 +3713,6 @@ fi
LIBS="${LIBS} -lm"
echo "$as_me:$LINENO: checking for getpwnam in -lsun" >&5
echo $ECHO_N "checking for getpwnam in -lsun... $ECHO_C" >&6
if test "${ac_cv_lib_sun_getpwnam+set}" = set; then
@ -3885,7 +3939,7 @@ cat >>confdefs.h <<\_ACEOF
#define ECL_THREADS 1
_ACEOF
if test "${with___thread}" = "yes" ; then
if test "${ac_cv_ecl___thread}" = "yes" ; then
cat >>confdefs.h <<\_ACEOF
#define WITH___THREAD 1

3
src/configure.in
View file

@ -190,6 +190,7 @@ dnl Checks which do not come with autoconf (must be after AC_PROG_CC)
ECL_MAKE_ABSOLUTE_SRCDIR
ECL_CROSS_CONFIG
ECL_GUESS_HOST_OS
ECL___THREAD
AC_SUBST(INFOEXT)
AC_SUBST(INSTALL_INFO)
@ -229,7 +230,7 @@ if test "${enable_threads}" = "yes" ; then
LIBS="${THREAD_LIBS} ${LIBS}"
CFLAGS="${CFLAGS} ${THREAD_CFLAGS}"
AC_DEFINE( [ECL_THREADS], [1], [Userland threads?])
if test "${with___thread}" = "yes" ; then
if test "${ac_cv_ecl___thread}" = "yes" ; then
AC_DEFINE( [WITH___THREAD], [1], [__thread thread-local variables?] )
fi
fi